Furnace-mouth lining for boilers.



Nmssas. PATENTED DB0 18, 1906. B.4 B. LAMPRBY.

FURNAGE MOUTH LINING PORBOILERS.

APIfLIGATIoNHLBD MAY 11. 190e.

BEN B. LAMPREY, CF VVESTFIELD, MASSACHUSETTS.

FURNACE-WIOUTH LINING FOR BOILERS.

Speccation of Letters Patent.

Patented Dec. 18, 1906.

Application filed May Il, 1906. Serial No. 316,335.

T0 all wiz/0m, it may concern:

Be it known that I, BEN B. LAMPREY, a citizen of the United States, residing at Westfield, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Furnace-Mouth Linings for Boilers, of which the following is a specification.

The particular object of the present improvements is to provide eifective means for collecting and disposing of the mud and other sediment which collects in the hollow bases of the furnace-mouth lining or protective archplate of steam-boiler furnaces.

The present improvements are designed especially for use with the furnace-mouth lining set forth in United States Letters Patent No. 592,635, granted October 26, 1897, to myself.

The present improvements are illustrated in the accompanying drawings, in which- Figure l is a perspective view of the protective arch-plate orfurnace-mouth lining. Fig. 2 is a side elevation of one of the bases. Fig. 3 is an end elevation of one ofthe bases. Fig. 4 is a longitudinal vertical section of one of the bases. Fig. 5 is a vertical cross-section of one of the bases.

The general organization illustrated in Fig. l of the present drawings is similar to that set forth in the aforesaid Letters Patent No. 592,635. There are shown in the present drawings the two bases A A, the two horizontal manifolds or headers B B, vertical pipes C C, connecting the bases and manifolds, and horizontal pipes D D, connecting the two manifolds. The protective arch thus constituted is associated with the furnace-door, with the boiler', and with the feed-water supply in the manner set forth in said Patent No. 592,635 or in any other suitable way. There is also shown at E a connection for the feedwater through which the water circulates from the boiler when the feed-pump isr not used.

'Ihe present improvements relate to the novel construction whereby sediment and mud collecting in either of the bases can be easily and readily removed. The construction of both bases in this respect is alike, and it will consequently suffice to coniine the description to one. As shown in Fig. 4, the bottom of the base has two sections F G, which slope downwardly from the ends to the middle. The rear section F slopes downwardly to the lowest portion of the base,

while the front section G slopes down to a point above the lowest point. The front section and rear section are connected by an inclined wall H, in which is formed a lateral blow-ofil hole I. The wall H, together with the adjacent portion of the rear bottom section F, constitutes a sediment-pocket in the immediate neighborhood of the blow-off hole I. On reference to Fig. 5 it will also be seen that the side walls J J of the base A slope downwardly and inwardly on opposite sides toward the bottom sections and toward the pocket. As a result of this construction of the inclined sides and bottom sections of the base sloping downwardly and inwardly toward the sediment-pocket the tendency of any mud or sediment collecting in the base is to gravitate toward the sediment-pocket. The blow-off hole I is adapted to be suitably connected to a blow-off pipe having a suitable controlling-valve.

From time to time as sediment collectsfin the bases the blow-off valves are opened and the steam-pressure within the connected boiler forces the sediment or mud collected in the bases outwardly through the blow-off openings. The inclined bottom sections and inside walls of the bases facilitate the discharge of the sediment, which may rest upon them in case it is collected so as to more' than fill the pocket. Each base is provided with appropriate legs upon which it can squarely stand. As shown in the drawings, these legs are composed of outward extensions K L of one of the end walls and one of the side walls, which extend at least as low as the bottom of the sediment-pocket. Consequently the bases will stand squarely, and at the same time the blow-0E openings are readily accessible for the attachment of the blow-off pi es. These downward-extending legs, it wi l be noted, are located at the inner side and end of each base, thus leaving the outer end and outer side free to facilitate the access to the blow-off openings.

I claim- 1. A base for a furnace-mouth lining for boilers having converging side walls and bottom sections inclining toward a sedimentpocket, said pocket having a blow-ofi:` openm0'.

2:2. A base for a furnace-mouth lining for boilers having two bottom sections each eX- tending downwardly over one end of the base, the two bottom sections extending downwardly to different levels, and an in- IOO IOS

5. A base for a furnace-month lining for boilers having a depending sedinient-pocl et with a blow-off opening and a downwardlyextending inner side and a downwardly-extending inner end, both of which extend down at least as low as the lowest part of the sediment-pocket and serve as the legs on which the base may stand.

. In witness whereoi1 I beve hereunto signed my naine in the presence of two subscribing witnesses.

BEN B. LAMPREY.

'Witnesses1 E. H. PARKINS, ARTHUR S. BRowNE. 

